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On Thu, Dec 26, 2002 at 02:22:28PM +0100, Tomas Szepe wrote:
> >
> > hdparm -X69 /dev/hda will put it into UDMA5/ata100 mode as well
> > (69 == 64 + UDMA mode). No need to specify it at boot time.
>
> Not true. You definitely need to use the ideX boot param AND
> run hdparm -X?? /dev/hd? to make use of UDMA3+ on newer PDC
> controllers (unless you apply the patch posted on Dec 24 by
> Nikolai Zhubr).
Driver says otherwise on RH8.0 + 2.4.20:
iapetus /proc/ide# cat pdc202xx
PROMISE Ultra series driver Ver 1.20.0.7 2002-05-23 Adapter: Ultra100 TX2
--------------- Primary Channel ---------------- Secondary Channel -------------
enabled enabled
66 Clocking enabled enabled
Mode MASTER MASTER
--------------- drive0 --------- drive1 -------- drive0 ---------- drive1 ------
DMA enabled: yes no no no
UDMA Mode: 5 0 0 0
PIO Mode: 4 0 0 0
--
Frank
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